In recent years the removal of dams that pose environmental hazards has been seen as a river restoration and management tool. The ecological benefits of removing dams, such as the restoration of water temperatures and fish passage, have been well documented. However, fewer studies have evaluated...

We study the factors influencing the sugar imports in China. A multivariate linear regression model for quantitative analysis in established and the model is researched with multicollinearity treatment, autocorrelation and heteroscedasticity test. Research result shows that the per capita income...